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2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON)最新文献

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Techniques and Measures to Manage Functional Safety and Other Risks with Regard to Electromagnetic Disturbances 与电磁干扰有关的功能安全和其他风险管理的技术和措施
2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2018-11-01 DOI: 10.1109/GEMCCON.2018.8628478
K. Armstrong
{"title":"Techniques and Measures to Manage Functional Safety and Other Risks with Regard to Electromagnetic Disturbances","authors":"K. Armstrong","doi":"10.1109/GEMCCON.2018.8628478","DOIUrl":"https://doi.org/10.1109/GEMCCON.2018.8628478","url":null,"abstract":"Many near-future applications necessary for the safety and quality of human life, will require a huge expansion in high-per-formance high-power computing; switching power conversion; wireless datacommunications, and wireless power transfer. Electromagnetic interference (EMI) is often ignored at present but will be crucial for the arrival of this future world. Where errors, malfunctions or failures in electronic systems can increase safety or other risks, electromagnetic compatibility (EMC) testing cannot be sufficient for proving that risks are low enough. This paper briefly introduces newly-developed techniques and measures which, when added to traditional EMC testing, can prove that risks due to EMI are adequately low.","PeriodicalId":394870,"journal":{"name":"2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128468321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Dielectric Breakdown Between PV Panel Frames and Structures – A Hypothesis 光伏板框架和结构之间的介电击穿-一个假设
2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2018-11-01 DOI: 10.1109/GEMCCON.2018.8628580
P. H. Pretorius
{"title":"Dielectric Breakdown Between PV Panel Frames and Structures – A Hypothesis","authors":"P. H. Pretorius","doi":"10.1109/GEMCCON.2018.8628580","DOIUrl":"https://doi.org/10.1109/GEMCCON.2018.8628580","url":null,"abstract":"Flash marks on the frames of some photovoltaic panels suggested that these may be associated with arcing phenomena that may contribute to interference and loss of efficiency of the panels. The question of how these flash marks were presented was raised. A hypothesis is proposed in this paper that the flash marks are as a result of loss of equipotential on a micro-scale, under lightning ground potential rise, and as a result of the difference in impedance between the materials of the panel frames and the structures, sufficient potential difference developed between the materials that lead to the dielectric breakdown of the aluminium oxide layer on the panel frame.","PeriodicalId":394870,"journal":{"name":"2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125633638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Emission levels of ELF magnetic fields from 132 kV distribution substations 132千伏变电站极低频磁场的发射水平
2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2018-11-01 DOI: 10.1109/GEMCCON.2018.8628573
P. Rathebe, T. Mbonane
{"title":"Emission levels of ELF magnetic fields from 132 kV distribution substations","authors":"P. Rathebe, T. Mbonane","doi":"10.1109/GEMCCON.2018.8628573","DOIUrl":"https://doi.org/10.1109/GEMCCON.2018.8628573","url":null,"abstract":"One of the leading sources of emission of ELF magnetic fields in occupational settings and residential communities is overhead power lines and electrical substations. This study aimed to investigate the emissions of ELF magnetic fields in 132 kV distribution substations within Mangaung metropolitan region, Free State, South Africa. Four 132 kV substations were randomly selected in three prominent areas of Mangaung metropolitan region. For each substation, 50 (1 m2) blocks were divided from the floor plans and a total of 200 measurements were collected using Triefield meter model XE 100. The data was analyzed using analysis ToolPak from excel programme (Microsoft 2010). ANOVA was performed to compare the mean values between four substations. The results obtained from statistical tests indicated a non-significant difference when ELF magnetic field emissions from four distribution substations were compared to one another (p< 0.39). It was also found that area one (1.26 µT) had a higher emission mean value than area two (1.15 µT) and three (1.14 µT) respectively. This study concludes that exposure levels measured in the three prominent areas of Mangaung are below the recommended ICNIRP guidelines for both workers and general public.","PeriodicalId":394870,"journal":{"name":"2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127756764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Considerations for Coexistence: DVB-T2 Broadcasting and LTE Basestations in 700/800 MHz bands in South Africa 共存的考虑:南非700/800 MHz频段的DVB-T2广播和LTE基站
2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2018-11-01 DOI: 10.1109/GEMCCON.2018.8628602
A. Lysko, Gcina Dludla
{"title":"Considerations for Coexistence: DVB-T2 Broadcasting and LTE Basestations in 700/800 MHz bands in South Africa","authors":"A. Lysko, Gcina Dludla","doi":"10.1109/GEMCCON.2018.8628602","DOIUrl":"https://doi.org/10.1109/GEMCCON.2018.8628602","url":null,"abstract":"This work considers coexistence of DVB- T2 and LTE in South Africa. The protection ratios for protecting DVB T2 transmission against interference from LTE are calculated based to the DVB- T2 specifications used in South Africa. An approach is proposed and model developed to apply the protection ratios to evaluate the appropriate separation distances, as a function to frequency and power separation, ignoring the possibility of overload and desentisation. One of key findings is that an easy way of coexistence is by placing the LTE base stations on the same towers as the broadcasting DVB- T2 transmitters.","PeriodicalId":394870,"journal":{"name":"2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":" 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132124832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Direct Sampling in Multi-channel Synchronous TDEMI Measurements 多通道同步TDEMI测量中的直接采样
2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2018-11-01 DOI: 10.1109/GEMCCON.2018.8628576
Tom Hartman, N. Moonen, F. Leferink
{"title":"Direct Sampling in Multi-channel Synchronous TDEMI Measurements","authors":"Tom Hartman, N. Moonen, F. Leferink","doi":"10.1109/GEMCCON.2018.8628576","DOIUrl":"https://doi.org/10.1109/GEMCCON.2018.8628576","url":null,"abstract":"This paper shows possible benefits of multi-channel synchronous time-domain electromagnetic interference (TDEMI) measurements. The setup was developed with respect to low-frequency conducted Electromagnetic Interference (EMI) measurements in high power, fast switching systems using a low-cost solution. Using an 8-channel digitizer voltages, currents and magnetic fields were simultaneously recorded. Using digital signal post-processing investigations were performed on the relation between switching currents and magnetic fields, while also investigating the time variance of the load impedance.","PeriodicalId":394870,"journal":{"name":"2018 IEEE 4th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124113369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
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